Backwater floor and stable drain.



No. 669,042. Patented Feb. 26, l90l. J. F. CUTTER. BACK WATER FLOUR ANDSTABLE DB AIN.

(Applicatio'n filed Dec. 26 1899.) (No Model.)

W/i'inesses Unirrno Starts Alhl Prion,

JOHN F. COTTER, OF KANSAS CITY, MISSOURI, ASSIGNOR TO L. E. WYNE, OFSAME PLACE.

ACKWATER FLOOR AND STABLE DRAIN.

SPECIFICATION forming part of Letters latent No. 669,042, dated February26, 1901.

Application filed December 26, 1899. Serial No. 741,660. kido model.)

To all whom it may concern.-

Be it known that 1, JOHN F. COTTER, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented a new and useful Combination Backwater Floor and StableDrain, of which the following is a specification.

My invention relates to combination backwater floor and stable drains,and has for its object the production of a device of this characterwhich can be easily and quickly cleaned and which prevents gas from thesewer or backwater from the drain-pipe passing up through the drain.

To these purposes theinvention consists in certain novel and peculiarfeatures of construction and combinations of parts, as will behereinafter described and claimed, and in order that it may be fullyunderstood reference is to be had to the accompanying drawings, in whichFigure l is a vertical longitudinal section of an apparatus embodying myinvention. Fig. 2 is a detached perspective view, enlarged,of theremovable drain-spout. Fig. 3 is an inverted plan view of the same.

Referring to the drawings in detail, 1 designates a sink of the usual orany preferred configuration, and 2 flanges projecting inwardly therefromfor the support of the removable plate 3, provided with drain holes orperforations 4:.

5 designates a conical spout depending vertically through an opening inthe bottom of the sink and provided at its upper margin with theoutwardly-projecting annular flange 5, seated snugly in the annularrecess 5 formed in the bottom of the sink and secured tightly in suchposition by means of a plurality of screw-bolts 6, extending downthrough the flange and into the depressed portion of the bottom of thesink, the connection being made water-tight by interposing a rubbergasket 7 between said depressed portion of the bottom and said flange,as shown clearly in Fig. 1. A centrally-perforated cross-bar 8 isprovided near the lower end of said conical spout, and at the extremelower end of the latter an outwardly-flaring valve-seat 9 is formed,against Which the spherical float-valve 10 is adapted to seat underasufticiently strong backflow of water from the drain-pipe or in casethe drain-pipe is choked from the water passing through the sewer-pipe,as hereinafter referred to. The float-valve 10 is provided with avertical stem 11, projecting upward through the perforation of bar 8 andis engaged at its upper end by the retaining-nut 12, the latter servingto retain the float-valve at the proper distance from the valve-seat 9in order that it may be seated before any backwater could pass upthrough the conicalspout. This spout,which acts a removabledischarge-spout for the drain,is provided with a strainer l3,supplemental to the strainer 3, in order that substances foreign towater and poured with the latter into the sink when strainer 3 is not inplace may not pass down into said spout and interfere with the properworking of the valve or passing said valve possibly choke thedrain-pipe.

The drain-pipe 14 is diametrically enlarged at its upper end,so as toenvelop the depressed said horizontal portion at the proper angle is goa branch pipe closed by a plug 18, this branch pipe being provided inorder to give access to the trap in case it becomes choked.

At the opposite side of the trap from pipe 17 and in a plane just belowthe latter the 5 drain-pipe is provided with a short branch pipe l9,withwhich connects pipe 20 to cond not the sewage from the house or otherpoint to the drain-pipe.

In operation it will be understood that the [O0 Its The drain-pipe isformed just below water poured into the sink passes down through thesupplemental strainer 13 and conical spout 5 into the drain-pipe, andthence through the trap to the main sewer-pipe. At

the same time any sewage escaping through pipe passes from thedrain-pipe to the main sewer-pipe, and in case the discharge from pipe20 is such that the capacity of the trap will not admit it to pass offrapidly and it accumulates in the drain-pipe it is obvious that the riseof the Water will raise the float and cut off connection between thedrainpipe and the sink, thereby insuring that all of the water passes tothe main sewer and none of it backs up into the sink. The trap of courseprovides a permanent water seal for the discharge end of pipe 20 andagainst the escape of gases up through the trap and into the apartmentWhere the sink is located, if the latter of course happens to be locatedwithin an inclosed space.

The float of course will rise and fall accurately by reason of thevertical stem extending through the cross-rod 8 depending on gravity tounseat it and a rise of water to reseat it.

In case it becomes necessary at any time to clean the apparatus, accessto the trap may be had by removing the plug 18 and by removing strainer3 and the conical valve-carrying spout 5.

From the above description it will be apparent that I have produced anapparatus of the character described which is positive and reliable inoperation and of simple, durable, and compact construction.

Having thus described the invention, what I claim as new, and desire tosecure by Letters Patent, is

In an apparatus of the character described, the combination of a sinkhaving an opening in the bottom and a communicating recess surroundingsaid opening, a spout 5 of inverted conical form depending through saidopening, and provided with an outwardlyprojecting flange 5 occupying thesaid recess, a packing-ring interposed between the said flange and thebottom of the recess, screw-bolts clamping said ring tightly betweensaid flange and the bottom of the recess, a cross-bar bridging thepassage of the spout, a vertical rod extending slidingly therethroughand provided with a tap at its upper end and a float-ball at its lowerend, a trapped pipe below the sink having an enlarged upper endinclosing the spout and float-ball and secured to the bottom of the sinkaround said depressed portion, and a sewage-pipe 20 connected to thetrapped pipe just below its enlarged upper end, all arrangedsubstantially as and for the purpose set forth.

In testimony whereof I affix my signature in the presence of twowitnesses.

JOHN F. OOTTER.

'Witnesses:

G. Y. THORPE, H. G. RODGERS.

